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| 0001437749-22-019969-index.html | 2022-08-11 10:44:40 | |
| 0001437749-22-019969.txt | 2022-08-11 10:44:40 | |
 0001437749-22-019969-xbrl.zip | 102599 | 2022-08-11 10:44:40 |
| ckx-20220630.xsd | 27012 | 2022-08-11 10:44:40 |
| ckx-20220630_cal.xml | 25766 | 2022-08-11 10:44:40 |
| ckx-20220630_def.xml | 197444 | 2022-08-11 10:44:40 |
| ckx-20220630_lab.xml | 169514 | 2022-08-11 10:44:40 |
| ckx-20220630_pre.xml | 212593 | 2022-08-11 10:44:40 |
| ckx20220630_10q.htm | 712402 | 2022-08-11 10:44:40 |
| ckx20220630_10q_htm.xml | 444796 | 2022-08-11 10:44:40 |
| ex_407230.htm | 49125 | 2022-08-11 10:44:40 |
| ex_407231.htm | 50624 | 2022-08-11 10:44:40 |
| ex_407255.htm | 4010 | 2022-08-11 10:44:40 |
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| ex_407257.htm | 12824 | 2022-08-11 10:44:40 |
| ex_407258.htm | 12826 | 2022-08-11 10:44:40 |
| FilingSummary.xml | 18938 | 2022-08-11 10:44:40 |
| Financial_Report.xlsx | 40575 | 2022-08-11 10:44:40 |
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| R1.htm | 52379 | 2022-08-11 10:44:40 |
| R10.htm | 73668 | 2022-08-11 10:44:40 |
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| R8.htm | 25856 | 2022-08-11 10:44:40 |
| R9.htm | 17245 | 2022-08-11 10:44:40 |
| report.css | 2767 | 2022-08-11 10:44:40 |
| Show.js | 1085 | 2022-08-11 10:44:40 |